Oil-engine.



No. 640,083. PatentedA Dec. 26, |899.

H. N. lcKlEBToN a. H. w. BRADLEY.' 1

UIL ENGINE. ,y (Application med sepmeae, 1899.) i) (No Model.) UWE W U TH! Nonms PETERS w.. PHsTo-Lrmo.. WAsHmGoN, D4 c.

UNITED STATES PATENT OFFICE HENRY NIELD BICKERTON AND HENRY WENTWORTH BRADLEY, OF

' ASHTON-UNDER-LYNE, ENGLAND.

OIL-ENGINE.

SPECIFICATION forming part of Letters Patent N o. 640,083, dated December 26, 1899. Application iiled September 29, 1899. Serial No. 7 32,064. (No modele.)

To all whom, it may concern:

Be it known that we, HENRY NIELD Blon- ERToN and HENRY WEN'rwoRTH BRADLEY, subjects of the Queen of Great Brit-ain, residing at Ashton-under-Lyne, in the county of Lancaster, England, have invented a new and useful Improvement in Oil- Engines, (for which we have obtained provisional protection in Great Britain, No. 8,595, bearing date April 25, 1899,) ofwhich the following is a specification. Y

The improvements relate to oil-engines,and have for their object the injection of oil and tiring the same in the form of vapor or gas by compressed air or gases at the proper times for combustion or explosion in the cylinder or eX- plosion-chamber of the engine in the manner hereinafter to be described; and in order that the invention may be the better understood we will proceed to describe the same with reference to the accompanying sheet of drawings, wherein the gure represents a sectional plan of part of the back end of an oil-engine provided and arranged in accordance with our improvements.

In carrying out the present invention we prefer to form the main cylindera of the engine with an internal partition b, having an aperture c therein, into which fits Va projection d', formed upon the end of the piston d, which is thus capable of inclosing an air-space ebetween the partition b and the main body of the piston d when the projection d passes into the recess c, as shown in the drawing.

Communicating with the inclosed air-space e thus formed when the piston is approaching the end of its stroke is a tube or opening f in connection with avaporizing outer or isolated chamber g, which latter is in communication with an oil-pump It by means of atubej, and

such outer or isolated chamber g also communicates through a passage lo with the ex plosion-chamber or back end of the cylinder Z. The outer or isolated chamber g is kept suciently hot to vaporize the oil by means of the heated gases having access thereto; but in starting the engine such chamber may be heated by any external means.

The oil-pump h is operated to permit the proper quantity of oil to enter the vaporizer gat the right moment, a plunger m, connected with the pump, being actuated for this purpose by thev movement of a pusher n through thelinterposed block o. The pusher n is mounted at the end of a fulcrumed lever p, which carries a bowl fr', acted on by a cam s at every revolution of the side shaft t.

The operation is as follows: In the case of an engine of the Otto or two-cycle type the oil is admitted into the vaporizer g at some point between the end of the eXhauststroke and the end of the compression-stroke. At the outward or suction stroke the air is drawn into the cylinder through the valveport u in the usual or any suitable manner, and at the following inward stroke the local compression in the inclosed space e blows air through the vaporizing-chamber g, and therebydisplaces the isolated charge of vapor and gas for combustion or explosion, as well as forcing the lighted vapor from the vaporizer to the explosion-chamber at the back of the piston.

Having now particularly described and ascertained the nature of our said invention and in what manner the same is to performed, We declare that what we claim is- In oil-engines, an isolated vaporizing-chamber g, fed by oil, and communicating with the main cylinder a, and explosion-chamber l, by passages f, le; in combination with the partition b, and opening c, therein, and the projection CZ', on the piston d, for the purpose and in manner substantially as herein set forth.

HENRY NIELD BICKERTON. HENRY WENTWORTH BRADLEY. Vitnesses:

WILLIAM GADD, GEORGE FREDERICK GADD. 

